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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/linux/mbcache.h
4 (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
7 /* Hardwire the number of additional indexes */
8 #define MB_CACHE_INDEXES_COUNT 1
10 struct mb_cache_entry
{
11 struct list_head e_lru_list
;
12 struct mb_cache
*e_cache
;
13 unsigned short e_used
;
14 unsigned short e_queued
;
15 struct block_device
*e_bdev
;
17 struct list_head e_block_list
;
19 struct list_head o_list
;
25 int (*free
)(struct mb_cache_entry
*, gfp_t
);
28 /* Functions on caches */
30 struct mb_cache
* mb_cache_create(const char *, struct mb_cache_op
*, size_t,
32 void mb_cache_shrink(struct block_device
*);
33 void mb_cache_destroy(struct mb_cache
*);
35 /* Functions on cache entries */
37 struct mb_cache_entry
*mb_cache_entry_alloc(struct mb_cache
*);
38 int mb_cache_entry_insert(struct mb_cache_entry
*, struct block_device
*,
39 sector_t
, unsigned int[]);
40 void mb_cache_entry_release(struct mb_cache_entry
*);
41 void mb_cache_entry_free(struct mb_cache_entry
*);
42 struct mb_cache_entry
*mb_cache_entry_get(struct mb_cache
*,
43 struct block_device
*,
45 #if !defined(MB_CACHE_INDEXES_COUNT) || (MB_CACHE_INDEXES_COUNT > 0)
46 struct mb_cache_entry
*mb_cache_entry_find_first(struct mb_cache
*cache
, int,
47 struct block_device
*,
49 struct mb_cache_entry
*mb_cache_entry_find_next(struct mb_cache_entry
*, int,
50 struct block_device
*,